Adding attachment for type-writers.



PATENTED NOV. 19, 1907. J. C. LOTTE'RHAND. ADDING ATTACHMENT FOR TYPEWRITERS.

APPLICATION FILED APR. 27, 1901.

8 SHEETS-SHEET 1.

fado

9:3 I K 8 TM d 7 .U a .N H 6 IT B \T ,.ll l .F VA R I q. D E 3 .X S `7.A 1 ,Q m

MCL GMW No. 871,761. PATENTED NOV. 19, 1907.

J. o. LOTTERHAND. ADDING ATTACHMENT PoR TYPE WRITERS.

l APPLICATION FILED APR. 27, 1901.

6 SHEETS-SHEET 2.

No. 871,761. PATENTED NOV. 19, 1907.

v J. C. LOTTBRHAND. ADDING ATTACHMENT FOR TYPE WRITERS'.

APPLICATION FILED APR. 27, 1901.

6 SHEETS-SHEET 3.

jz0MZOrX Zrj 6.60566.' 297.9 v 332 ,A C MM Y dig z ,ha -c E M i .l g

'ATBNTBD NOV. 19, 1907.

J. C. LOTTERHAND. ADDING ATTACHMENT PUR TYPE WRITERS.

APPLICATION FILED APB. 27, 1901.

e SHEETS-sunk .www

PAv'I-ENTED NOV. 19, 1907.

' J. C. LOTTERHAND. ADDING ATTAGHMENT FOR TYPE WRITERS.

6 SHEETS-SHEET 5.

APPLIOATIOI FILED APB. 27, 1901.

.WLM

PATENTED NOV, 1'9, 1907.

J. o.`L0TTERHAND. ADDING ATTACHMENT FOR TYPE WRITERS.

APPLIoA'rIox FILED un. 27, 1901. a sums-SHEET e.

innen/f C JM) UNITED srAr'Es PATENTv OEEIOE.

JAsoN c. LOTTEEHAND, oFNEw YORK, N. Y., Ass`IGNoR To JOHN T. LANG-HOENE,or sr. LoUIs, MISSOURI, AND WALTER B. MANNY, or NEW YORK, N. Y.

ADDING ATTACHMENT FOR TYPE-WRITERS.

Specification of Letters Patent.

.Patented Nov. 19, 1907.

Original application filed J auuary 17. 1901'Serial No. 43.599. Dividedand this application filed April 27, 1901. Serial No, 57,797.

To all whom it may concern:

Be it known that I, JASON C. LOTTERHAND, a citizen of thel UnitedStates, residing at the city of New York, in the county of New York&.and'State 'of New York, have invented certain new and useful Imrov'ements in Adding Attachmentsior Type- Vriters, oil-which the followinor is a description, reference being hhad to the4 accompanyingdrawings, forming 10 part of this speciiication.

The present ap lication is a division of application Serial No. 43,599filed by me on January 17, 1901, for improvements in typewritingmachines and adding attachments therefor. The subject matter of thepresent application consists of certain improvements in adding machinesand in their combination With typewiiting machines all of which will behereinafter more fully described and particularl y pointed out in theclaims.

In the accompanying drawings Figure 1 is a top plan view of the machine,with the upper part ofthe casing removed and part of the frame workbroken away, to expose the parts beneath; Fig. 2 a middle verticalsection of the machine; Fig. 3 a sectional'plan view of the forward partofthe machine beneath the type-keys; Fig. 4 a top plan view of thepaper-carriage of the typewriter, with the adding device mountedthereon; Fig. 5 an elevation of the left hand end of Fig. 4

. Fig. 6 an enlarged. detail view showing one of the adding keys and`coerating parts; Fig. 7 a detail of some of t e same parts; Fig.' 7a adetail from Fi 7 showing the graduations of the cams; `ig. 8 a viewcorrespondino` to Fig. 6 with the adding key artially depressed andcoupled to the t pe ey; Fig. 9 a similar view showing the ad ing keyfully depressed; and Figs. 1() to 14, inclusive, detail views of theaddin device.

The same reference numerals re er to identical parts in the severalwiews. A

The description of my present invention may be best understood ifprefaced b a briefv explanation of the t -bar and 'ey mechanism of' thet'd ewritin machine in connection with wluc my a'. ding attachment isillustratedP in the accompanying drawings. This mechanism is best shownin Figs. 1, 2, 6, 8 and 9 where it Will'be seen that the operatingtypekeys of the machine consist of thin arms or plates 1 rigidly sebb curedat their rear ends to vertically shdihg rods 2 (or formed integraltherewith), and having secured to their-front ends vertical stems 3passing upward through and loosely guided in'apertures in the forwardtop plate 3a ofthe machine and carrying at their upper ends the usualkey-buttons 4. The rods 2 are arranged in a semi-circle in front of andconcentric to the printing point, as shown in Fig. 1, and are guided attheir upper and lower ends in the frame plates 5 and 6, or bearings uponsaid plates. Each of these plates is of coinci ent apertures for thepassage of the iupper and lower ends of the rods 2, but in the presentinstance, to relieve friction, the rods 2 do not have-their bearingsdirectly in said apertures but are guided by and have their bearingsbetween pairs of grooved an tifriction rollers 7 which are mounted asshown in ,supports 8 upon the frame plates 5 and y6. Coiled springs 9connected at their lower ends to the key plates 1 and at their upperends to the under side of the trame plato 5 yieldingly hold the rods 2in elevated posi-l tion and serve to return them thereto afterdepressions of the keys.

' Secured upon the rods 2 are collars 10, provided upon their rear orinner sides with ears 11 proJecting radially toward the printving point,to which ears are connected the upper and outer ends Aof wires or rods"12 Whose lower or inner ends are connected to the type-bars 13. Thesetype-bars are pivotally su ported at their lower ends, concentric to t eprinting point, in hangers 1S upon the trame plate 6, and carry at theirupper ends the usual type-blocks 14 bearing upperand lower casetype-characters. The depression of the rods 2 causes the type-bars to beswung inward and downward and their type brought into contact with theupper side of the platen roller 63 at the rinting point, while thereturn of the parts y the springs 9 restores the type-bars to theirnormal position, where they rest against a suitable semi-circularsupport 15 secured to and depending from the frame plate 5.

The purpose of my novel adding attachment, constituting the subject,matter of my present a plication, is to enable amounts to be printe uponthesheet of paper upon the platen roller on the paper carriage of thetypewriter and at the same time add it into a. total sum upon the addingdevice, so that rovided with a semi-circular row when the foot of thecolumn of workl is reached, the total of the amountsin the columnascertained' by referenceA to the adding device and the necessity'lfor.adding up the column by mental calculation be thereby obviated. I am ofcourse aware that it has heretofore been proposed to cornbme vaddingmechanisms with typewriters in various ways for this purpose, and myinvention consists in a novel and improved combination of addingmechanism and type- 'writer, as well asin novel features of the addingmechanism itself. What I will term for brevity, the adder A ofthismechanism is mounted upon and adjustable longitudinally of the papercarriagev of the typewriter, Figs. 1, 2 and 4, to which end the baseplate 31of the paper-carriage has secured to its right hand end, Fig.'4, a forwardly projecting side vplate. 205 inlwhich are journaled theright .hand ends of three rods 206, 207 and 208, whose opposite ends arejo'urnaled in a corresponding side plate 209 secured to and projectingforwardly from the Vbase plate 3 1 of the paper-carriage at.`its lefthand end. The rods 206, 207 and 208 are provided 'at .theiroppositeends, with milled tain such engagement.

thumb Vpieces by which they may be readily turnedfor purposeshereinafter described.

The inclosing casing of the adder A is pro` vided upon its rear sidewith ears 210, Fig.

A4, through which passes the rod 206, while at its upper forward cornerssaid casing is ,provided with eyes through which passes the rod 208. Therod 207 passes substantially through the center of the adder and isprovided with a longitudinal groove; While the rod 206 isscrew-threaded, and the rod 208 has its under side cutaway Figs. 10

and 14, all for purposes hereinafter eX- plained.-

i F ulcrumed upon the left hand side of the casing of the adder is alever 211, Figs. 4 and 14,' whose rear end is bent to correspond to` thepitch of the threads upon thescrew rod 206, and fits in a correspondingslot in the left hand lear 210 ofthe adder casing, and when permittedengages the threads of the 'rod 206 as shown inFig. 14, a coiled spring2,12 connected to'the lever tending to main- The upper forwardend of thelever 211 fits against the flattened or cut away under side of the rod208, 'Figf 14, ,and when saidrod is turnedl so as to bring its upperrounded surface against the 'lever the latter will be rocked and itsAlowerrear end thrown upwardl out of engagement with the threads uponthe screw rod 206.

As willbe understood from the foregoing description, by turning the'rod208 so as tol disengage the lever 211 from the screw rod 206, the adderwill be disengaged from'said Irod and left free to'slidelongitudinallyuponthe rods in either "direction, while when the lever isengaged with 'the screw rod20'-tho adder lmay be adjustedflongitudinallyof the rods by turningthe rod 206.' The purpose of these provisionsvislto'enable the adder to be slid along the rods by hand, to quicklyadjust it to approximately the desired position, and to then enable itsniceradjustment to the exact -position desired toibe effected b fturning the `screw ,rod 206. vIn effecting these adjustments,.-tqsi'mplynecessary to irst turn the rod 20K-seras to disengage the lever 211 fromthe vscrew rod 206, then slde the adder along the Yrods: toapproi'rimately the desired position, andfthen turn the rod 208 back tonormal l:position and effect the" final setting of thea der by turningthe-rod 206. The adder casing is provided upon its opposite sides withmilled vthumb pieces or handles,A 208, for shifting it laterally byABefore entering upon-:a: description of the paratory to an explanationof the means for actuating it, it Will suflice to say that the addercontains a series of registering wheels 4213, Figs. 14, 11 and 13 whichrepresent units and tens of cents, and units, tens, hundreds,

thousands, tens of thousands, hundreds of thousands, and millions ofdollars, respec- -mechanical details` of the adder, and pretively, andare actuated by corresponding` pinions 214 projecting from the frontside of the adder, which pinions are in turn actuated by a gearvtoothedsegment or sector 215 carried upon the rear end of a lever 216, Figs. 2,6, 8 and 9. This lever 216 projects rearwardly from, 4and its forwardhalf or end p c'nstitutes a rigid part of, a rocking frame yB fulcrumedupon a rod 217pand composed of a series of thin bars or levers 2 18,Figs. 2, 3,. 6, 8 andQ, rigidlyconnected together'at their forward endsby a tie-rod 219, and slightly in rear of the rod. 217 by a secondtie-rod 220. As appears in Figs. 6, 8 and 9,

theforward end of the lever 216 constitutes one of the arms 21-8 of thisrocking frame, and in the further description of the parts it vFvillbeconsidered simply as one of said arms,

The rod 217 upon whichv the rocking frame is fulcrumed is sup orted atits opposite ends in the upper en s of a bell-crank frame C vcomposed ofa'pair 'of bell-crank arms or levers 221 vrigidly connected together bytie- -rods 222 223,' to form a single rocking frame,

and fulcrumed Vat their `angles upon a rod 224'1secured at its opposite'ends in the side frames of the machine. The rear ends of thebell-cranks 221 are connected by a trans-' verse vrod 225 whichcooperates withA the cams hereinafter described. 'A stud 226 Fig. 9projectinginward from the left hand side frame of the machine Figs. 6,7, 8 and 9 asses through a` slot 227 in the vleft hand 'y y:

. ll-c'rank 221 and limits the'forward and backward movements yof theupper ends of s id'pbell-cranks andthe rocking frame of snaai which.they constitute a part. connected at their upper rearends to thefrontends ,of several ofthe arms 218 of the rockingl frame B which carriesthe lever 216 and sector 215, and at their lower forward ends to lugsupon the inner side of the front frame plate, Figs. 2, 3 and 6, and asupplemental spring 228a connected to the upper end of t 1e righthandbell-crank 221, Fig. 3, serve to pull the frainesiorward to the limit ofmovement permitted by the stud 226 engaging the slot vin the bell-crankl221, and to also v ieldingly hold the rear end of the lever 216 andsector 215 in elevated position, as shown in Figs. 2 and 6, in whichposition the upper edge of the lever 216, or alprojecting bearingsurface thereon, rests against the un.- der side of' the frame plate 6.The springs 228 thus serve to yieldingly hold the sector 215 in andreturn it to its normal upper ,and forward position, in which positionit is out of mesh with the pinions 214 of the adder A, as shown in Figs.2 and 6. When, however, the lover 216 is moved rearward the sector 215will be engaged with one of the pinions 214 of the adder, as in Fig. 8,and'when the sector is then swung downward such -pinion will be turned adistance corresponding to the downward movement given the sector, and acorresponding amount be added upon the registeringI wheel 213 actuatedby such pinion. Such rearward and downward movements are given thesector 215 at each 'adding operation of the machine, by the means to benow described.

It will be seen that the adder wheels of the adder are arranged indivisions. the cents division is separated a vspace from the hundredsdivision, andA the latter a higher space' from the thousands division,and. as the platen and carriage must move to a greater extent incarrying the adder wheels pastfthe sector between such divisions, theiigures of the numbers printed have s aces between the differentdivisions, thus acilitating the return of the number and dis-v tinguishing between dollars and cents.

As shown in Fig. 1 the keyboard of the machine is provided, in rear ofthe regular typekveys, with. a supplemental row of keys w ose lingerbuttons 229 bear in successionthe nine digits, in regular order fromleft to right, and also acipher and period upon the tenth'and eleventhkeys at the right hand end of thel row. The iirst nine of these suplemental keys censtitute the adding ke s o the machine, whle the twoadditiona keys are provided for convenient use in conjunction with suchadding keys, as hereinafter explained. The finger buttons of thesesupplemental adding keys are mounted upon the upper .endsof straightvertically reciprocating stems or Shanks 230 which are ded near their uv ends in slots in the orward to plate o the machine, and at their loweren Springs 228.

That is,

`of .each of the plates 235 is a cam in slots in a transverse plate 231secured at its ends to the opposite side frames of the machine, Figs. 2,3; 6, Sand 9, and in guide brackets 231'* secured to the under side ofthe plate 231,Figs. 6,8an,d 9. Eachkeystem 230 is combined with meansfor actuating the adding mechanism therefromfeach key impart# ingapositive and definite and uniform degree of movement differing indegree from that of each of the otherkeys. Thus each stem is providedupon its forward. edge, about mid.- way of its length, with rack teeth232 engaging a pinion 233 mounted upon a stud 234 projecting from theside of a supporting plate 235 and having fastupon and turning with it acam 236y having a hooked or slotted tail 236 and ada ted to coperatewith -a stud 237 (surroun ed by an anti-friction collar) projecting fromthe side of the adjacent arm '218 of the rocking frame B which carriesthe lever 216 and actuating sector 215, as hereafter described. There isone of the supporting lates 235 for and beside each of the adding eystems 230.- These plates are in the-present instance of the irregularshape partially indicated in Figs. .6, -8 and 9, but their upper endsare there hidden b the key stems 230, since the upper ends of t e latesand the key stems are. of substantialiy thev same width, as shown inFig. 3, where the u per ends ofthe plates are shown in section.

ese narrow upper ends of the plates iit and are supported in slots inthe to plate of the Mounted u on-a vscrew stud 239 upon the portion isk240, Figs. 6, 8. and 9, provided in its periphery with three notches orrecesses a b c ap roxilower end of t e forwardly projectin matelyequi-distant from each other. n the normal position of the arts thelowermost notch a engages the ro 225 of the rocking bell-crank lra'me C,the forward notch b re-v ceives a stud 241- on the plate 235, whichlimits the turning movements of the disk upon the stud 239, while thethird notch c cooperates with two spring-pressed dogs or pawls 242 -243mounted by slots and screw- -studs upon the side ofthe key stein 230,and

pressed forward by vsprings 244 secured at one endto the ke stem 230 andat their opposite ends suita ly connected to the pawls 242 and 243. Itresults from this construction and arrangement of the parts thatwheneverone of the addi keys is depressed its pawl 243 will en age Itieshoulder on the disk 240 formed by t e lower wall of the notch or recessc in sald disk and turn the latter 'from the position shown inlFig. 6 tothat shown 1n Fig. 8, in which latter position thev disk will 'i beheld,with the lower wall of its notch b in contact with the stud 241, byv acoiled spring 245 connected at its lower. end to a pin upon the disk andat its upper end to the plate 2.?5.\ This movement ofthe cam disk 240from 4the position of Fig. 6 to that'of Fig; 8 will have forced the rod225 of the bell-crank frame C downward and throw the upper'end of saidframe rearward, and thereby shiftedv the frame B rearward andengaged'thesector 215 withpne of the pinions-214 of the adder A, as shown in Fig.S, so that any downward movement then given the sector 215 will betrans-A y the keys, but that on the movementof any .due to momentumgiven the one ci2 the adding keys the actuating mechanism and the addingmechanism are operatively connected. lAs the downward move ment of thekey stem 230 continues the cam 236 geared to it by the pinion 232 willreceive in its slot the stud 237 and force the rear end of the rockingframe and the sec-tor2l5 downward a distance proportionate tothe'pitchof the cam. The pitchofthe yrespective cams is so graduated Fig. -7ilthat-the cam l eared to the left hand or units addi-ngkey wi 1,at .afull depression ofsaid key, move the sector 215 downward one unitoffdistanee, and add a single unit to .the registeringwheel in gear withthe segment at such time; while. the succeeding keys to the right willmove the sector additional units ofdistance corresponding to theirrespective values'and transmit correspending'v degrees of movement tothe reg' tering wheel in gear with the segment. 'lhe slotted or hookedtails 2365,01? the camsare provided for the purpose of insuring ositivemovements 4and positively locking te stud i 237 to the camat the end ofthe downwardv movement imparted to it by the cam, so as to prevent anyexcessive movement or overthrow of the sector and vregistering wheels raze parts by a quick or violent depression of the key, the inner`yends'of. 'saidlslots being concentric with the .aXison-which the .camsturn. .It will be seen thereforethattliere is a positive-connection 'imovement from the position shown in-Fix-p8` fto' that shown in Figli)theforward end of its upper newl 242 will contact with the pe-v orlocking'together of each adding key andthe actuatingmechanism during theentire time they are cooperating to operate the adding mechanism,-securing positive action in every instance.` Y .1. n i J AS the addingkeycontinues its downward into the notch b in the p 228 'connected tothe rocking frame B to' pull riphery ofthe cam disk 240 above the notchc in said disky and be lforced backward .there- -by as the .keydescends, until the upper edge or point of the pawl has been carriedbelow the upper end of the notch or recess, where- .upon the pawl will..swing forward into said recess, below the shoulder formed by its up-",per wall, as shown in Fig. 9, and at the be.

ginningof the return upward movement of the key stem said pawl willcontact with saidshoulder and turn the cam di'sk (with the aid of thespring245) back -to normal position, Fig. 6, thereby permitting the rod225 to rise disk and the springs the latter `forward and discngage thesector from the pinion; and uduring the further up- .ward movement ofthe 21,5, beinF free from the to norma movement of the cam 236, againstwhich its stud 237 bears, will permit. v As the key stem rises the lowerpawl 243 will contact with and be forced backward by the periphery ofthe cam disk 240 after the latter has 'been returned tdnopmal positionby the upper 1t' pawl and s rinor 245, as described, unti key stem'thesector l pinion 214, will rise, position as fast as the backward clearsthe s oulder formed by the lower wall l oi the notch c in the disk,whereupon it willl spring forward into said notch, as in Fig. 6, readyto turn .the cam disk again' upon the next downward Vmovement ofthe key.Suitable resetting springs'connected to the left hand sides ofthe keys2,30, and therefore not shownin Fics. 6, 8 and 9, serve to lift the keysand yie dingly hold them in norm-al position.

For reasons hereinafter -s sential to -insurethe 4full mentojf the addinpressed and to this end I plete-stroke device for each ey, which mayciied,v it is -e s ownward movekey each timexit is de.

1providea come:

l e of any suitable construction. f Asshown,

inconsists of a bellcrank lever l246 pivoted to l v. 4 1.11052 theplate235 in re'ai'-of"and adjacent thekey and having thelower endof itsdepending arm shaped to. coperate as Va 'pawl' with ratchet teeth 247formed upon the rear edge' of the key si The upper forwardlyprojectingarm of the bell-cranklever 246 liest between two studs 248 249 upon theleft side of the key stem, so that at va full depression of the key theupper stud 249 will contact` upper arm ofthe bell-crank and4 del with.the press the same and swing the lower arm of -the bell-crank rearwardout 'of engagement with the 'ratchet'247 on the key stem, asin Fig. 9,while at' tact with tl'ie"under sidenf the forwardlyextendingarin' oftlieqbellfcrank and lift it, and ,y

.thereby swingthe loyer-.arm of the bellcrank forward' ratchetupon thekeystemaga'in, as inkFig. 6. A stmdf250l proieetmgfrom-the'plate 235 thereturn upward movei ment of theL ke yjthe lower' pin 248 -will con-:1.25. ,i

intogf engagement 1 with' the I isc between the two arms ofthebell-crank limitsv the iuowlnents of the latter in opposite directions,while a coiled spring 251 connected at its upper end to the plate' 235and at its lower end to the lower arm of the bell-crank yieldingly holdsthe latter in its opposite positions when moved thereto by the contactof the studs 248 and 249 with its upper arm as described.

As will be understood from the foregoing description, when any one ofthe adding keys is depressed the sector 215 is first thrown rearward andengaged with the adder pinion 214 which is at the time in line with it,and is then swung downward the full distance required to add in theadding mechanism an amount corresponding tc the value indicated .by suchoperated key, after which, at the'vv return upward movement of the key,the sector 215 is first withdrawn from engagement with the pinion, bythe action of the springs 228, and then swung upward to normal po-`sition..

The importance of the absolute locking to gether of each adder key andthe actuating mechanism, and of insuring absolutely the full andcomplete movement of the keyafter` such movement is begun will beevident. If an adder key could be `partly depressed and `then return tonormal position, the result would be to move the adder wheels to anextent to'indicate in theadding mechanism an amount less than thatindicated by the key, or printed by the connected type. Further, if thekey and actuating mechanism were not locked together, a percussive blowon the key might partially depress it and yet cause the actuatingmechanism to move by momentum to a greater degree than required to addthe amount indicated by the key.

A supplemental set of type-bars and con nections cooperating with theadding keys might of course be provided for the purpose of'F enablingthe amounts added upon the adding device to. be simultaneously printedupon the sheet of paper on the platen roller, as has heretofore beenproposed in machines of this class; but a further feature of myinvention consists in combining the adding keys of a machine of thischaracter with the'printing devices operated by the correspondingtype-keys of the machine in such manner that a single set of type-barsand connections suffices both for the adding vkeys and the correspondingtype-keys in the regular keyboard of, the machine. This enables me 'todispense with the ninetype bars andr their connections which Lwouldotherwise bejrequired for the addingkeys, and correspondingly reducesthe number of parts inthe maclune and enables all of the type-hars andtheirvcon'nections in a combined typewriting and adding machine tobearranged in the same manner and in the tances below the top same spaceas in an ordinary typewriter having no adding mechanism,

.[n myp'resent machine a simple and con venient method of vcombiningthe` adding keys with the printing devices of the corresponding typekeyshas been to provide means lor automatically and positively locking together the adding keys and the iorrespondi ing type-keys whenever theadding keys are t depressed, and thereby cause such t to be carrieddownward by and with. the adding keys, to actuate the correspondingtype-bars, and as the adder keys are compe led as before described tovmake a full and complete movement, the adding in the adder mechanism ofthe amount represented',

bythe key depressed is absolutelyvinsured,

a result essential in the practically opera-L tive machine. It willbeevident thatif the adder key and the corresponding ty e kej,T were notlocked together and the ad er key could make a partials'troke, suchpartial stroke might throw the type key sufficiently to print thefigure, while anamount less than represented by said figure would beadded 1n the adding mechanism. One means of carrying out this method isillustrated in Fi s. 6, 8 and 9 of the drawings, Where it' wil be seenthat the stem of each adding key 230 has pivoted to it7 some'dislate ofthe machine, a bell-crank lever 252 liia'ving a hooked uppe'r endadapted to cooperate with a stud 253 vupon the side of the horizontalplate or arm 1 of the adjacent type-key to lock the two together. .A'spring 254 Figs. 6, 8 and 9 coiledaround the pivot of the bell-crank 252and connected at one end to the key stem and at its opposite end to theforwardly projecting horizontal arm of the bell-crank tends to throw theverticalarm of the bellcrank rearward and engage its hooked upper endwith the stud 253 upon the type-key )late l', and thereby positivelylock the typekey and adding key together, but when the key stems 280 arein their u per and normal position the upper arms of) the bell-cranksare held rocked forward as in Fig. 6 by contact of the front ends' oftheir horizontal arms with stoppins 255 projecting rear-v wardly fromcollars fast upon a fixed rod e-keys 256 secured at its opposite ends inthe side frames of the machine, Fig. 3. When the adding keys are intheir upper and normal position, therefore, the hooked arms of thebell-cranks 252 are held out of the path of the studs 253 upon thetype-ke s, and the latter are free to be depressed in ependently of theadding keys, in the ordinary operation of the typewriter; while when anyadding key is depressed its first downward movement will carry. thefront end of the lower arm of its bell-crank 252 away from the pin 255and permit thespring 254 `to throw the l key can move independen.

hooked upper end of the vertical ofy said bell-crank rearward intoengagementjiollows:

with the stud 253 upon the type-key, as iny Fig. 8, and thereby, lookthe two keys together, so4 that during 'thegiurther 4downen ward `andreturn upward rn-mernentv neither and the amount represented -theaddin'key will be added upon the; dlngldevice anc be also printed upon thepaper on, the platen by the type-bar connected tothe type-key.'

simp e lug projectingnfiom'the side of the adding key stem 230 above thestud 253 upon the adjacent type-key 1' would 'of course serve thepurpose .of causing the dey pression'of the adding ke'y to carry thetypestored in the adder mechanism. Adding n is useless, however accurateit may be gen-.`

mechanism which 'is not practically infallible erally. To insureabsolute accuracy, I pro vide means to lock the two keys together at thedepression of the adding key, so that the type-key cannot be thrownahead of the addmg key by a quick or violent partial depression of thelatter and the escapem'ent mechanism of the machine be ythereby operatedand the paper carriage shifted without first fully depressing the addingke and adding its value upon the registering wlieel of properdenomination in the addingv device. Any suitable automatic couplin orlocking de# vice between the adder an type-writer de. loyed in carryingoutmy.

,vlees may be em invention, but t e bell-cranks described', andcoperating parts, are simple and efiiclent. f

From the above it'will be seen that 'it is essential for the effectiveworking of the apparatus that the two keys shall'upon the actuation ofan adder key be so'connected that one shall inevitably move with andlonly with the other and also that after the movement of an adderkey`begins it shallnot be capable of a return movement until its fullstroke is completed. When therefore in this specification and in mclaims I make use of the terms connecte "-locked together and positivelylocked, I do not mean a mere.

- contact between the parts insuring a partial simultaneous movementbutpermitting one part to be capable of an independentmove-- ment, but Imean an absolute connection' of the vtwo 1n such manner that one cannotmove Without the other after the movement of the adding key begins andthe relation of the two is preserved through the movement of the adderkey. .A

The generaloperation or'mode of use of f fermer the add-inlg mechanismof my machine is as v he position which it-is desired the verticalcolumnof iigures shall occupy upon the sheet; of apex having beenfirstdetermined, the ja der A. i's slidalong .the papercarriage to aposition-opposite `such proposed 'column of figures, `and adjusted to'exact position for the respective pinions 214 to registerwith thesector215 when amounts are being printed in the corresponding denominations in-thefcolumns of iigures upon .the paper. Thus, if it be vproposed toprint' the. column' of iguresin suchv position that the units'ofvcentsshall be opposite the gradiea'tion 6() on scale bar 98,. the addi-r`will be adjusted for the'fpinion 214 of itsunits of cents registeringjwheel'to registerwith the sector 215 when the paper-carriage is inposition transversely of the machine to print a iigure inthe units ofcents column at 60.

vThe printing may then be begun in anyv higher denomination in thecolumn by rst moving the'paper-carriage the proper distanceto the right,and as the adding keys arefthen successively operated to print thedesired amount the paper-carriage will ad.

vance step by step toward the left and carry 'the pinions 214 oi4 theadder successively in-to line or register with the sector 215, and lwhile in line with each pinion the sector will actuate such inionand thecorresponding movement 'of the adding key, and the papercarriage willmove the adder to the left to the next lower denomination upon thereturn up stroke of the adding key, while the sector is disengaged fromthe pinion, as heretofore described. l

.reglstering w eel during the downward To facilitate theadjustment ofthe vadder' A in the manner and for the purpose above described Iprovide a pointer 257 projecting forward from a plate 258 secured to aiixed cross piece 259 of the machine, Fig. 1, which pointer coperatesywith the registering wheels 213, or a corres )ending scale uion the/topplate of the ad er casing, to ai in determining ythe exact location ofthe adder. Whenv the adder is adjusted transversely of the machineuntily the .pointer 257 stands opposite any given registering .wheel 213Athe pinion 214 ycorresponding to such wheel `will e in line or registerwith. the sector 215, ready for actuation thereby. A pointer 260projects from the rear `side of theplate 25S over the scale-bar 98on-the paper-carriage,

to determine the positions of the latter' transversely-of the machine,as usual. In adjusting the adding device to print' a col-r gumn ofigures with units of cents at 60,`as

justed longitudinally of the paper-carriage until the units registeringwheel 2 13 is brought opposite the pointer 257,'which adjustment o theadder may be eifected either entirel l by the screw rod '206, or by rstreleasing 1t from such rod by turning the rod 208 and then sliding theadder along the rod by hand, and' then rengaging it with the screw rodand effecting its nal adjustmentby-turning said rod, as .heretoforedescribed.

After the adder has'been adjusted for the printing of the column offigures in the desired position upon a sheet .of a er the Ypaper-carriage will be slid tolits rig t hand mit of movement, and thedesired memoranda be written inthe left hand' portion of thc line withthe regular type-keys of the machine.v When 'such memoranda have beencompleted the paper carriage will be spaced or otherwise moved onward tothe left until the desired denominational column or s ace in thecolumnof figures is brought to t e printinv point. The amount to beentered will t en be printed by operating successivelythe proper addingkeys, and be thereby simultaneously added upon the adder A. Thepaper-carriage will then be returned to theright, and the platen rollerturned to advance thesheet of paper for another line, as usual, and theoperation be repeated. When a sheet has been'iled, or the lower end of acolumn of memoranda and figures of desired 'length has been reached,

the sum of all the amounts lin the column ofy figures will be displayedin the top of the adding'` device u on lthe wheels 213, so that such summay e ascertained vat a' glance without the necessit for any mentalcalcu lcolumn beprinted with the adding keys, so

that when thel end of the second colhmn'. is

` reached the wheels of the adding device will display the sum of theamounts in both columns, which total may be printed at the foot ofthesecond column with the regular type-keys of the machine, and carriedforward to the head of a third column, and so on to any extent desired,the'adding device preserving a total of all the amounts printed y theadding keys until its wheels are reset to zero or .initial position inthe manner hereafter described.

The two right hand keys in the row of adding keys, Fig. 1, bearing repectively a ci-l pher and a period 'or decima point, are provided merelyfor convenience, to enable the of the machine.

complete amount (including ciphers and decimal points) to be printedwith the keys in the rear row alone, without resorting to thecorresponding keys in the regular keyboard It will of course beunderstood that these two keys have no mechan- `engin '7 icalvconnection with the adding device, asy

indicated in Fig. 3, but are simply coupled suchadding keys to printciphers and deci mal points in the column of figures.

.to the corresponding type-keys when de- In the present instance, asshown'in Fi s.

1, 3 and 4, I have left spaces between e tens of cents and units ofdollars registering wheels,and between the hundreds of dollars andthousands of dollars wheels, and between the hundreds of thousands andmillions of dollars wheels, so that it is necessary to operate the spacebar of the machine in passing from the millions denomination to thehundreds of thousands, and from the thousands to the hundreds, and t-ooperate either the space bar or the decimal pointr key between theunitsof dollars and tens of cents Wheel.v I have arranged theregistering wheels in this manner because of the common practice ofprinting amounts with such spaces between the several denominations inadding machines now in very extensive use, but it is not in any Wayessential to and forms no part of my invei'ition, and so far as thelatter is concerned the registering wheels may be arranged immediatelyadjacent each other sothat any amount may be printed and added bysuccessively operating the adding keys immediately after one another,without any operation of the space bar or decimal point key, as will bereadily understood.

ioov

The provision for adjustment of the adder A longitudinally of thevpaper-arriag'e not only enables a single column of gures to be printedat any desired point transversely o'f the sheet of paper, but' permitsthe printing of several columns successively, side by side, and theaddition of the amounts in all of them upon the adder. Where, however,it is desired to carry out the same memoranda into several amounts indifferent columns it will be more convenient to provide the machine witha corresponding number of adders A located side by side upon andadjustable or non-adjustable longitudinally of the paper carriage. Theadders A are comparatively inexpensive and may be readily put in placeupon and removed from the paper-carriage, so that each machine may beconveniently provided with extra addersV for use when necessary.

In its details the adder A maybe of any suitable construction, the onlyessential beindg that it be provided with driving pinions a apted to besuccessively engaged with the 60 'the intermediate tcrmediate itsregistering wheels so asv to beveled 'shoulders inner end of a springpressed arm 264, which serves to aline the registering wheels, withtheir numbers properly exposed at the' slight opening in the top of thecasing, and also to prevent backward movement of the parts. The transferpawls 265 also coperate with the ratchets 263, there beinl one of suchpawls for each registerin whee except the units wheel, and locatebetween. the intermediatev gears 261 of the respective wheels. .their-lower ends to the front ends of levers 266 whose rear ends projectbetween and be.

side latch arms 267 hung at their upper ends upon a rod 268 and pressedforward at their lower ends by springs 269 and provided with or hooksadapted to catch under lateral projections or Alugs 270 upon' the rearends ofthe pawl levers 266 and support the rear ends of said levers inelevated position, as in Fig. 10, against ythe stress of springs 271tending to press the front ends of t e levers upward and depress theirrear ends. The transfer pawls 265 are provided with forward extensionsat their lower ends,

. lagainst studs 272 upon which the outer ends the springs 271 bear andthereby serve not only to press the front ends of the levers 256 upwardbut to press theupper ends of the pawls 265 inward and' maintain them inengagement with the ratchets 261. Each of the depending latch arms 267is provided upon its forward side with a beveled tooth or projection273, Fig. 11, normallyprojecting lnto the path of travel of twodiametrically opposite pins 274 upon the adjacent ratchet 1,261, withthe result that at each half revolution of such ratchet the latch arm267 will be swung rearward and its lower end be disengaged from thelever 266 which carriesthe pawl 265 coperating with the ratchet wheel ofnext' higher denomination, thereby releasing saidpawl and permitting itsspring 271 to throw it upward and cause'it to turn suchregistering wheelone step or unit of distance. The upward movement lof the pawl islimited by contact with'a rod 275 extending transverselyV across theforward side of gears, and which also serves, owing to the beveled upperend of the pawl, to loc the pawl in engagement with 1the ratchet andprevent any overthrow of the atter;l

These transfer pawls are pivoted at.

The pinions 214 and 262 have ten-y teeth each, while the intermediategears' 261 have twenty teeth each, so that each full revolution ofthepinion 214 imparts a half' revolution to the corresponding intermediategear, and the latter imparts a full revolution to the correspondingregistering wheel.l

upon theratchet 261 has swung theflatc'h arm 267 rearward tol its limitof movement Ibut' has not cleared the point -o the tooth 273 upon saidarm, and is still holding said arm in rearward position. As soon as thepin clears the point of the tooth (which it does before the parts cometo rest with the registering wheel which isgeared to said ratchet inzero'position) the latch arm will be swung forward to normal position incontact with a suitable rod 283. When the rear end of the pawl lever 266is subsequently lifted its projecting lug 270 will ride upward over thebeveled forward surface of the hook of the latch arm and pressthe latterrearward until it clears the point of the hook, whereupon the latterwill spring forward under the projection 270 upon the lever and supportthe latter in normal position. For the purpose of thus lifting thetransfer pawllevers 266 to normal eration of the device I provideresetting means for such levers which isA actuated at position aftereach op-l j 75 t will be understood that in the position .of the partsshownl in Fig 111 the rear pin 274 'each operation of the line-spacingmechanism of the typewriter, As shown in Fig. 5, the line-spacing lever101v is provided upon its under side with a gear-toothed sector276 whichmesheswith a pinion 277 fast upon the side of a cam 278 which cooperateswith a roller 279 carried by the rear end of a lever 280 which hasdepending from its front end a link 281 connected. at its lower end tothe side arm of a bail 282, Fig. 4, whose cross bar extends entirelyacross the machine in the position relatively to the adding device shownin Figs. 1 and 11. At each operation of the line-spacing lever 101,therefore,

the rear end of the lever 280 is depressed and` the bail 282 swungupward, thereby returning to normal osition all of the-pawl levers 266which have been released fand thrown downward by their springs at theprecedingV operation, and causing their lugs 270 to be` rengaged by thehooks of the latch arms 267. l f

To permit the bail 282 to be swung upward and the transfer pawls resetwithout moving the platen roller and advancing the paper, when desired,Improvide-a lever 1011 adjacent the lever 101 Fig. 5, whose front end isadapted tobefthrown forward beneath a stud 101b upon the side of thepawl 102 when the real-end ofthe lever 1 01 is pressed forward towardthe lever 101, and

thereby prevent the pawl from engaging the ratchet 103 when the twolevers. arel then swung rearward vtogether to operate the.pawl-restoring bail 282.

Each of the ratchets 263'has pivoted to it a spring-pressed pawl 284,Fig. 11, which eooperates with the .longitudinal groove in the shaft 207upon Which said ratehets' and the intermediate gears are mounted. By.turning this shaft forward,l in the direction in which the registeringwheels normally turn, therefore, all of the registering wheels may bepicked up and carried forwardto initial or zero position by a completerevolution of the shaft, in the usual manner of such resetting devices.

Having thus fully described my invention, I claim n 1. The combinationwith the transversely movable paper-carriage and the `regular type-keysand printing devices of a typewriter, of a supplemental series of addingkeys arranged to actuate the printing devices of the correspondingtype-keys, an adding mechanism, and locking connections arranged to beoperated by the adding keys and. constructed to ositively lock togetherthe printing and at ding devices in adding and insure under, allconditions thev adding together of the amounts rinted bythe' operationor said keys, su stantially as', de-

scribed.

2. -In an adding typewriter, the combination with the transverselyvmovable papercarriage and the regular type-keys, and

f printing devices of the typewriter, of a suplplemental series ofadding ke s, means arranged to be shifted upon t e downward movement ofthe adder keys for positively locking together said keys and therintin'g devices of the corresponding typeeys in adding, but so as toleave the latter normally free to be operated inde endently of the .ading keys, and an ad ing mechanism and connections operated by the addingkeys andconstructed to insure the adding together of the amounts printedby the operation of said keys, substantially as described.

In an adding typewriter, the combination, with the transversely movablepapercarriage and the regular type-keys and printing devices of thetypewriter, of a supplemental series of adding keys means to lock theadding keys positively with the corresponding type-keys to cause thelatter to aetuate their printing devices when the adding keys areoperated, but leaving them normally free. to independently aetuate theirprinting devices when the adding devices are not operated, and anv'adding mechanism operated by the adding keys to add together theamounts printed by the operation of said keys, substantially asdescribed. y

4. In an adding typewriter, the combination, with the transverselymovable papercarriage and the'regular type-keys and printing devices ofthe typewriter, of a supplemental series of adding keys, automaticlocking devices to positively connect the adder keys with and toseverally depress the corresponding type-keys to actuate their printingdevices, but leaving the type-keys normally free to be depressedindependently ot the adding keys, to actuate said printing devices, and.an adding mechanism operated by the adding keys to add together theamounts printed by the operation of said keysv substantially asdescribed,

,5- In an adding typewriter, the combinat-ion, with the transverselymovable papercarriage and the regular type-keys and printing devices'o'ithe typewriter, of a supplemental series of adding keys, means forautomatically and positively locking the adding keys to thecorresponding type-keys when the adding keys are operated, to compelsaid keysto move in unison during the operation of the adding keys, andan adding mechanism operated by the adding keys to add together theamounts printed by the operationo'f said keys, substantially asdescribed.

6. In an adding typewriter, the combination, with the,transverscly'movable paper- 4 carriage and the regular type-keys andprinting devices of the typewriter, of a supplemental series of addingkeysl` mea-ns operating upon the depression of any adding key topositively lock together said key to the corresponding type-key andcompel the two keys to move together during the further downward andupward movemeutof the adding key, and. an adding mechanism operated bythe adding keys to add together the amounts printed by said keys,substantially as described. l

7-. The combination with typewriter and adder keys of a combinedtypewriter and adder., .of means arranged to be shifted on depressing anadder key for automatically and positively locking the two keys togetherin adding.

8. The combination with the typewriter and adder keys of a combinedtypewriter and adder, of means for positively locking the two keystogether on depressing an adder key to compel them to descend in unison,said means constructed to permit the typewriter keys yto be depressedindependently of the adder keys.`

9. 1n an adding typewriter, the combination, with the transverselymovable papering upon the depression of any adding key to automaticallycouple and lock said key to 4the corresponding type-key and compel themto move together during the further downward upward movement -of the ii0 l type-keytddepress the same when the addtion di ,a type-bar, atype-key and connections for operating said bar, an adding key andlocking devices `coperatm'g-.withv the ing keyisvdepressed,vbut.permittingde ression ol the type-key independently othe adding'key, the typewriter carriage, and an adding mechanismyonfsaid carriage operated by the adding key, substantially asdescribed.

11. In an adding typewriter, the combination of a type-bar, a type-'keyand connections for operating Vthesame, an adding key,'

means for automatically lockingl the adding key and type-key togetherupon the`depres' sion of the vadding key, but permitting depression ofthe type-key independently'of-'the addin key, and an addin mechanismoperate bytheadding key, su lstantiallyas described. I

12. In an adding typewriter; the combination of a type-bar, a type-keyand connectionsy for operating the same, a depressible adding keylocatedadjacent the type-key, a lockingy device'interposed betweenl the typekeyand adding key and'operating automatlcally to lock the two keystogetherat the beginning t. 4

tion of a type-bar, a type-key and connecof the downward movement ofthe. adding key and to uiicouple them at the end of the upward movementof the adding key, and an adding mechanism o erated by. the addingdownward movement of the adding ey and-- to unlock them at the end ofthe upward movement of the adding key', and an .adding mechanismoperated -by the adding key, substantially as described. u

14. In an adding typewriter, the comblnation of a type-bara ty e-key andconnections for operating sai bar, a depressible addin r key adjacentthe type-key, a hooklock carried by the adding key and'adapted toautomatically engage a stud or projection upon the type-key at thebeginning of the downward movement of the addlng key to lock the twotogether and to lbe disengaged therefrom at the end of the upwardmovement of said key, and an adding mechanism operatori by the addingkey,substant1allyas described.

15. In adding typewriters, the combination of thetype-bar 13,the-depressible typcscribed.

keyhl and'connectOns for operating said bar,

saidkey being provided with the lateral proj ection or stud 253, theadding key 230 located adjacent the,type'key`,the bell-crank 252.carried bythe addin'g'key and provided with 255 cooperating with thehorizontal arm of the bell-crank to disenga'ge the hook from the stud atthe end of the upward movement of the adding key, and an addingmechanism operated bysaid adding key, substantially as described,

16. In adding typewriters, the combination of the type-'bar 13 ,jvertically reciprocating rod 2, connecting wire 12, type-key 1 carriedby1 the rod 2 and provided with'the stud 253, adding key 230, bell-crank252' .h'aying the hooked upper end cooperating with the stud 253, thestop 255 cooperating with th horizontal armof the bell-crank,

and an adding mechanisme erated byfsaid adding key, substantially'as tescribed.

17. In adding typewriters, the combination of a type-bar, a ty e-key'andconnections lor operating said Ear, an 'adding key, means forautomatically coupling the two keyst'ogether upon the operation of theadding key, a com lete stroke device coperatino' with said a ding key,and an adding -mechanism operated bythe adding key, substantially asdescribed.

18. In adding typewriters, the combina- .tions for operating said bar,vva depressible adding key'located ad'accnt said type-key, lmeansope/rating at t e depression of the adding key to automatically couplethe two keys" together, a com lete stroke device co operating with the ading key, and an adding mechanism operated by the adding key,substantially as described. t

.19; In adding typewriters, the combination of a typeebar, a type-key 1and connections for operating said bar, a depressiblo addingkey 230located 'adjacent said type- -key and provided with the ratchet l24.7and studs 248 249', a latch or couplingdevice intermediate said keys forautomatically coupling them together at the depression of the addingkey, the bell-crank pawl 246,coperat ing with the ratchet 247 and studs.248 249, and the spring 251 for holding said pawl in its oppositepositions, substantially as described.

20. In adding typewriters, the combination, with the paper-carriage, ofa series ol adding keys, an adderQaetuating means operated by said keysand located in fixed position relatiyely to the transverse movements ofthe paper-carriage, and an adding-device mounted upon and adjustablelongitudinally of the paper-carriage and provided with pinions adaptedto be successively engaged with I said actuating means,

substantially as dethe adding keys to engagfJ t 21. In addingtypewriters, the combination, with the paper-carriage of the typewriter,of an adding device mount-ed upon and carried by said paper-carriage,-aseries` of adding keys, an adder-actuating gear common to said keys, andmeans operated' by said adding keys for engaging said gear with a pinionof the addi device `and moving it while in vear therewith a distancepron the value of the key, and thenv 22. In adding typewriters, thecombination, with the paper-carriage of the ltype writer, of an addingdevice mounted upon and carried by sai-d paper-carriage, a series ofdepressible adding keys, an adder-actuating gear, means operated by saidadding keys for engaging the gear with one of the adder pinions andmoving it while in engagement therewith a distance proportionate to thevalue of such key, at the down stroke of such `key, and fordisengagingit therefrom and permitting it to return to normal positionindependently thereofl at the return u stroke of the key, substantiallyas described.)

23. In adding typewriters, the combination, with the paper-carriage ofthe typewriter, of an adding device mounted upon and adjustablelongltudinally of the papercarriage, a series o adding ke s, anadderactuating device located 1n ed position relatively to thetransverse movements of the paper-carriage and meanso erated by saiactuating device with a pinion o e adding device vand to move it whilein ear therewith a disi tance proportionate to t 1e value of said key,and to then Withdraw it from engagement with the pinion to leave thelatter and the Vadding device free for movement wit'flythe pa)er-carriage, substantially as described;

= Lft. In adding typewriters, the combinavtion, with the paper-carriageof lthe typewriter, of an adding device mounted upon scribe( andadjustable longitudinally of the papercarria e, a series of depressibleadding keys, an ad( fer-actuating gear, means operated by said addingkeys for engaging the gear with one of the adder pinions and moving itwhile in engagement therewith a distance proporiionatc to the value ofsuch key, at the down stroke of .-nch key, and for disengaging ittherefrom and permitting it to return to normal position independentlythereof at the return u )stroke of the key, substantially as de- 25. lnadding typewriters, the combina- ILion, with the line-spacing mechanismof th:` g

typewriter, and an adding device provided with tramitar or carryingdevices ntermedia'thn Wheel of diil'crcnt denominations, ci amm furtutoring said transfer devices to normal position at each operation ofthe machine.

26. In adding typewriters, the combination, with the line-spacinmechanism of the typewriter, and an ad ing device provided with springactuated transfer or carrying pawls intermediate its wheels of differentdenominations, of' means operated by the line-spacing mechanism torestore said pawls to normal position at each operation of suchmechanism, substantially as described.

`27.In adding typewriters, the combination, with the paper-carriage andan adding Adevice mounted thereon and provided with transfer or carryingdevices intermediate its line-spacing mechanism and means operatedthereby for restoring said transfer devices to normal position at eachoperation of such mechanism, substantially as described.

tion, with the paper-carriage and an adding ldevicey mounted thereon andprovided with spring actuated transfer or carrying pawls intermediateits wheels of different denominations, of the line-spacing mechanism ofthe machine and means operated thereby to restore said pawls to normalposition at each operation of said mechanism, substantially asdescribed.

29. In adding typewriters, the combination, with the paper-carriage andan adding device mounted thereon and provided with transfer or carryingdevices intermediate its Wheels of different denominations, of a movablerod or bar extending longitudinally of the paper-carriage and co ratingwith the same to normal position, the line-spacing lvmechanism, and aconnection between the same and said bar for operating said bar,substantially as described.

30. In adding typewriters, the combination with the paper-carriage andan adding device mounted th^e0n and provided with spring actuatedtransfer or carrying pawls intermediate its wheels of differentdenominations, ofa swinging bail mounted n pon the paper-carriage and.extending longitudinally thereof in proximity to the adding device, theline spacing mechanism and a connection between the same and said bailfor operating-the bail to reset thel transfer pawls at each operation ofsaid mechanism, substantially as described.

31. In adding typewriters, the ,combination of the paper-carriage, anadding deviceI A mounted upon said paper-carriage and containing thepawl-carrying levers 266, the spring-pressed transfer pawls 265 carriedby k said levers, the latches 267 for holding said levers and pawls innormal position, the swinging ba1l282 coperating with thel pawl g levers266, the line-spacing mechanism and a i connection between the same andsaid bail wheels of different denominations, of theA 2S. In addingtypewriters, the combina transfer devices of the ad er to restore thefor operating said bail .to restore the levers 266 and pawls 265tonormal position at each operation of said mechanism, substantially asdescribed.

82. In adding typewriters, the combination, with the paper-oarriage andthe adding device mountedthereon and provided with transfer or carryingdevices intermediate its wheels of' different denominations, of theswinging bailv 282 mounted upon the papercarriage and coperating. withsaid transfer devices, the lever 280 connected to said bail, the linespacing mechanism and the cam 27 8 cooperatingwith the lever 280 and.operated by thelever 101 of the line-spacing mechanism, substantially asdescribed'.l

33. In addingtypewriters, the combination, with 'an adding device'provided with transfer or carrying dev ic'es'intermediate its wheels' ofdifferent denominations, ofthe linespacing mechanismand` meansoperatedby the lever thereof for restoring said transfer devices to normalposition at each operation of said mechanism, and'. meansfordisconnecting said lever 'at will frein theline-spacing mechanism to...ermit'operation of itto reset the transfer" dvices'jwithout actuatingthe spacing mechanism, substantially as ydescribed.

34. In adding typewriters, the combina` tion, with the paper-carriageand an adding device mounted thereon vand provided with transfer orcarrying devices intermediate itsl wheels 'of different denominations,of the .line spacing mechanism and means operated thereby forrestoring'said transfer devices vto normal position at eachoperationof`su'ch, mechanism, and vmeans for disconnecting said lever at willfrom said linespacing' mechanism to permit ioperation of it to resetthev transfer -devices w1thout actuating the spacing mechanism,vsubstantially as' described.

35.` In adding typewriters, -the combina' tion, with the paper-carriageand an adding' device mounted thereon. and provided wih transfer i orcarrying devices intermedia e. its Wheels ofv different denominations',cf a` swinging bail extending longitudinally of. the

.paper-carriage inproximity to the-addingide` vice, the line spacingmechanism, a comicotion between said 'bail and thev actuating vlever 'ofthe line-spacing'mechanism for opl erating the bail by means of saidlever to re set the transfer 'pawl vat vreach' o erationof theline-spacingSmechanism,\an means for ldisconnectingsaidlslever from' theline-spac ing mechanism at willlto permito eration of .it to reset thetransfer devices wit out actuating the spacing mechanism, substantiallyas described. Y

36. In adding typewriters, the combination, with the .paperlcarriaga itsplaten roller rovided with a ratchet, and an actu .enf/ei paper, of anadding device provided with transfer or carrying devices intermediateits i wheels of diiierent denominations, means operated by said levei'fo'restoring said transfer devices to normal'position at each operation'of said lever`,'and means 'for preventing at will the engagement ofthe'pawl with the, ratchet when the lever is operated, whereby the transferdevices may be reset 'without turning the platen roller, substantiallyas described.

37. `In adding typewriters, the combination, with the paper-carriage,the platen roller provided with a ratchet, and a lever and pawlcooperating withsaid ratchet to turn the roller and advance the paper,of an adding device mounted upon the paper-carriage and provided withtransfer or carrying' devices intermediate its wheels of diiierentdenominations, of aswing bail extending longitudinally of thepaper-carriage in prox- `imity to thev adding device, a connectionbetween said bail and lever for operating the -bail by means of thelever to reset the transfer pawls at each operation of said lever, andmeans *for preventing at will the engagement of thepawl with the ratchetat the op eration vof the lever, for the purpose described.. y v 38. Inadding typewriters, the combination', with the'paper-carriage, itsplaten roller provided with the ratchet 1 03, and the lever 101carryingthepawlv 102 cooperating withsaid ratchettn return the roller,of an adding devil;` .provided Vwith transfer or carrying devicesintermediate its wheels of diierent denominations,means operated by' thelever 101 for restoring said transfer devices to nor- 'mal position-ateach operation of -said lever, and the y lever 10,1b cooperating withthe Alevel" 10iv and its awl 102 to prevent engage- "ment of said pawwith the ratchet v103 when said'leversare operated together,substantially as and for the purpose described.I v x ,-'39.`1 'In addingtypewriters, the combina# 'tien, with-the paper-carriage, ofthe adding`device. A vmounted to slide longitudinally tion, with thepaper-carriage, of the adding.

deViceIA mounted to slide longitudinally upon said paper-carriage, thescrew rod 206, the' lever 211 carried byv the adding device 4andcooperating at one end-with said rod,l and the attened rod 208coperating'with the opposite epd of said lever, substantially asldescribed.

ating ever and pawlv cooperating-with said 41; In adding-typewriters,the combinaition of the paper-carriage, the rods 206 207 and 203 mountedat their opposite ends therein, the adding device A mounted at its frontend with the flattened rod 208, and the pawls carried by the wheels ofthe adder and coperating with the longitudinal the rod 207 to cause theturning o said rod to carry said Wheels toihitial position,substantially as described. y n i 42. In an adding mechanism, thecombination of a seriesy vof reciprocating addi keys, a series of camsof dierent pitch geare to the respective kevs, soas to be turned by thereciprocations of .the keys, and an adderactuated device operated' bysaid cams and given different de s of'movement thereby 1rroportionate toi? eys, substantially as described.

43. In an adding mechanism, thec'ombination of a series of'`reciprocating adding keys, a series of cams of different pitch geare tothe respective keys, so as to bev turned by the reciprocations of thekeys, and an adderactuatin device operated by said cams `and given dierent positive degrees of movement thereby proportionate to the valuesof the respective keys, substantially as described.

44'. In an'adding mechanism, the combination of a lseries ofreciprocating addin keys, a series of cains 'of different pitch geare tothe respective keys, so as to be turned by the' reciprocations of thekeys, a pivoted frame co erating with said cams and given differentegrees of movement thereby proportionate to the values of thevrespective eys, and an adder-actuating gear carried by said frame,substantially as described. Y

45. In an adding mechanism, thecombi' nation of a series of'reciprocating addin keys, a series of hooked or slotted'cams o diiierentpitch geared to the respective keys,

so as to be turned by the reciprocations of thel keys, and anadder-actuating device coperating with said cams and. with the slottedor hooked tails thereof, whereby said device is given different degreesof movement by the different cams and locked thereto at the end of suchmovements, substantially as described. i

46. In an adding mechanism, the combination of a rockin frame carryingan adderactuating gear and provided with a series of laterallyprojecting studs, a series of reciprocating addin keys, anda vseries ofcams of different pitc i geared to the res tive ke s and coo ratingwithl the stu s upon 't e rocking ame, and provided with slots engagingsaid studs at the ends of the move mente of the cams to lock the rockingframe values of the respective thereto to im art ositive movements,substantially as escri ed.

47. In an adding mechanism, the combination of the rocking frame Bcarrying the actuating gear orsector 21'5 and provided with the studs`237, the reciprocating keys 230, and thecains 236 geared to therespective keys and coperating with thestuds 237 ion said rocking frame,substantially as described.

48. In an addin mechanism, the combi-i nation of the rocking frame Bcarrying the actuating gear or sector 215 and provided .with the studs237, the reciprocating keys 230, and the cams 236 geared to therespective keysand provided with the hooked tails 236 and coperatingwith the studs 237 on lsaid rocking frame, substantially as described. v

'49. .In an adding4 mechanism, the combination'of an adding deviceprovided with a driving iniOn, a reciprocating actuating gear engagea lewith and disengageable from said pinion, a series of reciprocatin addingkeys, and means intermediate'said eys and gear operatin at the downwardstroke of a key to engage t e gear with the pinion and move it while inengagement therewith a distance prcportionate to the value of suchkey,`and to isengage it therefrom andpermit it to return to initial.position at the upward stroke of the key, substantially as described.`

'50. In an adding mechanism, the combination of an adding deviceprovided with a driving pinion, a reciprocating actuating gearengageable with and disengageable from said pinion, `a seriesof'reciprocating adding keys, a series of cams of different pitch gearedto the respective keys andcoo erating with the actuating gear to movetle latter different .distances pro ortionate to the values of, theoperated eys, and means, operated by said keys for engaging saidgearfwitli the pinion ofthe addi device at the beginning of the downstroe of the keys and disengaging it therefrom at the b su stantially asdescribed."

51. In anaddingmechanism, theV combi-f nation' of an adding device.provided with a drivingpinion, a vertically and h rizontallyreciprocating actuating gear c peratin with said pinion, a series ofadding keys, an

.twosetsof cams operated by said-keys and cooperating with said actuatiny gea-r, one set lof cams operating to engage t e actuating lgear withthe pinion of the adding device at the beginning of the down stroke ofthe addl ing '.key and to disengage it therefrom at the o er set vofcams operating to impart die'rent degrees of movementto the actuatingdevice-while in gear with the adding pinion, substantially as described.

beginning of upstroke of said key,l and theA bell-crank frame an vvidedwith the studs 5 2. In an adding mechanism, 'tillen-mmh? natlon, withthe l vice, of the bell-crank fral e-C iovided with the transverse rod225, th roc ngfframelB supported in the'upper ends ofesaidybe crankframe and carrying the'actuatngfgeail 215 cooperating with the addingpiniojZl and provided with the studs 237, 'the sprlng's 228 connected tosaid frame, the adding-keys",

230, the cams 236l geared to said kei' sand cooperating with the studs237, and t e"\cam f with therod 225 oft. 9 I shifted in opposite i-,zfvrectlons by the pawlsf242 243lupon they-addi disks 240 coperatin mgkeys, substantially asdescribed'."-

53. In an adding mechanism;tlm'iGinbu frame B carryinlgtli verticallyreciprocatinggear 215 andfpr' i 237, the reciprocating' adding 230 andcooperating with the studs 237, t e bell-crank ratchet teelih upon theadding keys, and the springs [251` -for holding the pawls 246 inthelropposite positions, substantially as described. Y

54.1nan adding mechanism, the combination of the bell-crank frameprovided With the rod 225, the rockingframe pivoted. atits forward endinthe upper end of said bellcrank frame and carrying at its rear end theactuating gear 215, the springs 228 connected to the front end of saidrockingframe, the reciprocating adding keys 230 providedv with theratchet teeth 247 and studs 248 249, the.` cams 236 geared to therespective keys 230 and provided with the hooked tails 236'* andcoperating with the studs 23,7 on the rock- 4-5 pawls 242 A3 carried bythe volving in g frame, the cam disks 240 coperating Wlth the rod 225 ofthe belli-crank frame, the springs 245forholdingsaid cam disksf'in thelropposije positions, the

eys 230 and coperating with the disks 240' to shiftthe latter inopposite directions, the bell-crank lpawls 246 co,1 )er'ating with theratchet teetl:1.247 and with the studs 248 249011 vthe pawls 246 inthiropposite positions. 4

p 56 keys 230, and the spring 251 orliolding't-he 5.5. The `combinationwith a typewriter in? finger -operated numeral keys, of`

V computing mechanism comprisinga bank of ,l finger-o 5 5 lthe two inaddng and recording, butl are expose `where-'they may be' struc by thefingers, andconnections whereby to lock positively-together thenumeraltkeysof the typewriter and the corresponding digit keysv o'f-saldcomputmg mechanism which connections prevent? any independent movementof "`autoiia'tiallyfseparable to permit a record' Without adding.) -1

56. The'com ination with the transversely range Wls 246 cooperating withthe, 247 and with the studs 248 249.-

slpring-pressed eratedfdigit keys, with` iin er pieces,

@vinci v l movallle" a. Qr carria eand the re lar't epinion 2144ofthweaingdg 1 P P g. gu yp ysfand printing' devices of a typewriter, of#supplemental series'o' .addingl keysj ar- "to {ac'tuate vb the adding;keysjthe -printingfdevices of t Vfe correspond: v eys-, an: iiddingm'echaism, anico tons ate *by-'the' adding key u 'insure-underallconditionslvtb dding'to'- gether of the amounts printed: Y

572 In an adding-typewriter,

the-'eosin carriage. and the regular typerkysandprintarejoperated,tofcoinpel said keys'to move 1n ikf'ysi- I mlentjofV the' addingmechanism', and-'a `ad ing mechanism' 0' rated .bythe adding-fvto addtogethertg(a operation of scribed. L" A. Y, .v `58. 'The combinationin-an adding. tl'yp'ewriter,vof ,typewritingfand adding mec an'- e.amounts printed-by anismof the t` ewriter, tov insure the moveingnumeral mechanism-ofthe typewriter to insure 'the' movement of the tyvewriting mechanism'cor'responding to thatoi) the add- Iing'me'chanism.*1j 60The combinationin an addingtype- `writer, of t l e-writer andadding keys, an adding mec anism, actuating means for the`addingfmechanisrn,'and locking connections betweensaid adder keysandthe typewriting "means constructed to insure positive movements ofthe latter by theadder keys throughout the operation of a letter.

61. In a combined typewriter and adder, the combination of typewritingmechanism having numeral keys, adding mechanism, a second series ofnumeral 'keys, devices AbeftWeen said numeral typewriter keys and theadding mechanism normally out of connection with the latter, and meansto'make said connection on depressing any onel of the second serios ofkeys, substantially as set forth. i

62. The combination in a combined type writer and adder, of typewriterland adder numeral keys, adding mechanism carried by l .70 for.sitivelycou lingthetWQkey'ad-O p ruetego' `ing devices A of the'typewriter; goil? a" supple4 Lrnental 'of'jadding keys, means .forautomatically-locking.thf'gl adding keys to the lcor@ responding'typekeys whenthe adding keys means'tofinsure the completed-'.nioveiisms, asup lemental series of numeral keys',

maticallyand positively with the correspondy so l unison v during the,operation of ``the adding jfsaid'fkkeys,. substantially-as'de- A- isms,a supplemental series of numeralv keys, i means for lockingfeach of saidkeys posiv tively with the corresponding numeral mechy' the typewritercarriage and means for opcrv'15 nation with thetransverselyf'movablepaper keys.

ing to the amount indicated'by the key de#V j

